/Engine/Plugins/FX/Niagara/Source/Niagara/Classes/NiagaraDataSet.h
void GPUCopyFrom ( const float * GPUReadBackFloat, const int * GPUReadBackInt, const [FFloat16](API\Runtime\Core\Math\FFloat16) * GPUReadBackHalf, int32 StartIdx, int32 NumInstances, uint32 InSrcFloatStride, uint32 InSrcIntStride, uint32 InSrcHalfStride )